1. Comes with USB cable for calculator-to-computer connectivity. 2. Preloaded with 500 SAT prep questions. 3. Preloaded with software for algebra, geometry, trigonometry, biology, chemistry and physics. 4. Preloaded with organizer, spreadsheet and note-taking software. 5. Recommended for algebra 1 & 2, trigonometry, geometry, precalculus, statistics, business, finance, biology, physics and chemistry. 6. Optimal speed and memory 7. Uses four AAA batteries 8. Comes with product CD vol. 1.3 9. From smoke-free, pet-free home